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50 lines
713 B
50 lines
713 B
#include <stdio.h>
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#include <math.h>
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#include <fenv.h>
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double cubeNumber(double number);
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int main (void) {
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double number;
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double cube_number;
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int error = 0;
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printf("Give a number: ");
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if (scanf("%lf", &number) != 1 || isnan(number)) {
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printf("Not a number!\n");
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error = 1;
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} else {
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cube_number = cubeNumber(number);
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if (cube_number != NAN) {
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printf("%lf\n", cube_number);
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} else {
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printf("Floating point exception occured!\n");
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error = 1;
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}
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}
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return error;
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}
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double cubeNumber (double number) {
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double i;
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feclearexcept(FE_ALL_EXCEPT);
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i = pow(number, 3);
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if (fetestexcept(FE_ALL_EXCEPT) == 0) {
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i = NAN;
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}
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return i;
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}
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